Keep your engine's fueling, timing, and cooling strategy dialed in with the Standard Ignition Engine Coolant Temperature Sensor TX541. It installs as a direct-fit replacement for the listed applications, including the 2020-2025 Buick Encore GX [L3-1.3L], 2019-2025 Buick Envision [L4-2.0L], 2024-2025 Buick Envista [L3-1.2L], 2020-2026 Cadillac CT5 [L4-2.0L], and 2019-2025 Chevrolet Silverado 1500 [L4-2.7L] — see the Buyer's Guide tab for the full list.
This sensor measures the temperature of the engine coolant and reports it to the engine control module. The ECM uses that reading to manage fuel delivery, ignition timing, cooling-fan operation, and the dashboard temperature gauge.
- Coolant temperature monitoring: feeds a live temperature signal the ECM relies on to keep fueling and timing appropriate as the engine warms.
- Signs it may need replacing: an erratic or stuck temperature gauge, hard cold starts, poor fuel economy, or an illuminated check engine light. If a failed sensor is the cause, this replaces it.
- Direct-fit application: matches the sensor used on the listed Buick, Cadillac, Chevrolet, and GMC vehicles.
Manufacturer part number TX541.
Frequently Asked Questions
What does this coolant temperature sensor do?
It measures engine coolant temperature and sends that signal to the engine control module, which uses it to adjust fuel delivery, ignition timing, cooling-fan operation, and the dashboard temperature gauge.
Will the TX541 fit my vehicle?
It is a direct-fit replacement for the listed applications, including the Buick Encore GX, Envision, Envista, Cadillac CT5, XT4, XT5, XT6, Chevrolet Blazer, Colorado, Silverado 1500, and GMC Sierra 1500. Check the Buyer's Guide tab.
What are the signs this sensor may need replacing?
An erratic or stuck temperature gauge, hard cold starts, poor fuel economy, or a check engine light can be signs. Diagnose the cause first; if the sensor is at fault, replacing it with the TX541 addresses it.
How many sensors do I need?
The listed applications call for a quantity of one. This listing is for a single sensor.
What engines does the TX541 cover?
Applications span the L3-1.0L, L3-1.2L, L3-1.3L, L4-2.0L, L4-2.5L, and L4-2.7L engines across the listed vehicles. Confirm your engine in the Buyer's Guide tab.
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